CN110407555A - A kind of chlorine oxygen magnesium foam fireproof concrete light wall composite material and preparation method thereof - Google Patents
A kind of chlorine oxygen magnesium foam fireproof concrete light wall composite material and preparation method thereof Download PDFInfo
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- CN110407555A CN110407555A CN201910796836.XA CN201910796836A CN110407555A CN 110407555 A CN110407555 A CN 110407555A CN 201910796836 A CN201910796836 A CN 201910796836A CN 110407555 A CN110407555 A CN 110407555A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/50—Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/30—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing magnesium cements or similar cements
- C04B28/32—Magnesium oxychloride cements, e.g. Sorel cement
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/02—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof by adding chemical blowing agents
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D3/00—Roof covering by making use of flat or curved slabs or stiff sheets
- E04D3/35—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation
- E04D3/351—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material
- E04D3/354—Roofing slabs or stiff sheets comprising two or more layers, e.g. for insulation at least one of the layers being composed of insulating material, e.g. fibre or foam material more than one of the layers being composed of insulating material
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/52—Sound-insulating materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- General Chemical & Material Sciences (AREA)
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Abstract
The invention discloses a kind of chlorine oxygen magnesium foam fireproof concrete light wall composite materials and preparation method thereof, belong to the field of building materials, which includes bottom and surface layer, and the raw material of the bottom includes: 10~20 parts of magnesium chloride by weight, 4~6 parts of magnesia, 2~8 parts of water, 0.1~0.2 part of phosphoric acid, 4~8 parts of haydite, 3~8 parts of filler, 0.1~0.2 part of unorganic glass steel fibre, 0.1~0.2 part of liquid poly carboxylic acid series water reducer, 0.1~0.2 part of hydrogen peroxide；The raw material on the surface layer includes: 10~20 parts of magnesium chloride, 4~6 parts of magnesia, 2~8 parts of water, 0.1~0.2 part of phosphoric acid, 3~8 parts of filler, 0.1~0.2 part of unorganic glass steel fibre, 0.1~0.2 part of liquid poly carboxylic acid series water reducer, 0~0.2 part of toner by weight；Oxygen magnesium cement foam haydite fire-proof sound insulation concrete light wall composite material of the invention has light weight, and intensity is high, prevents fires, and heat preservation, sound insulation and other effects is a kind of environmentally protective sound absorption and insulation material；The preparation method of sound absorption ceramic material of the present invention, at low cost, the used time is short, easy to implement.
Description
Technical field
The invention belongs to the field of building materials, are related to a kind of magnesia oxychloride cement foam haydite fire-proof sound insulation concrete light wall
A kind of composite material, and in particular to chlorine oxygen magnesium foam fireproof concrete light wall composite material and preparation method thereof.
Background technique
The cladding of substation's assembly building is various in style, has their own advantages, but have apparent performance short slab simultaneously.Often
Single layer color steel plate thermal insulation property is bad, and roof waterproof not can guarantee, and service life is not achieved to be used on an equal basis with main structure
Life requirements；The use of battenboard is not achieved to be required with the same service life of main structure, and battenboard is as the roof boarding later period
Difficulty of construction is big for replacement；Although Double-layer profiled steel sheet scene composite heat-insulation roof water-proof heat insulation is guaranteed, service life
It is not achieved and is required with the same service life of main structure, difficulty of construction is big for later period replacement.Profiled sheet counterdie concrete cast-in-place slab
Thermal-insulating waterproof is guaranteed, and service life and main structure, roof boarding are concrete slab, and fire protecting performance is good, but is self-possessed relatively
Greatly, and there are the situ wet operations such as second pouring.Therefore, novel light combined wall board is developed, meets assembled architecture in all directions and encloses
Watch box system performance requirement, is important research direction.And magnesia oxychloride cement foam haydite fire-proof sound insulation concrete light scutum is reaching
While to profiled sheet counterdie concrete cast-in-place slab advantage, also there is lightweight, fire prevention, sound insulation has color, can do decorative panel
Etc. series of advantages.
Magnesia oxychloride cement be by light calcined magnesia with solidification blender magnesium chloride, mix is prepared water according to a certain percentage
A kind of early-strong-fast-hard air hardening cementitious materials.The magnesia oxychloride cement concrete formed with a certain amount of sandstone has many excellent
Point, such as fast solidifying, gelling are strong, high-strength, fire-proof sound insulation, maintenance be easy.Using magnesium chloride as blender, it is good to assign it
High temperature resistant property.Magnesia oxychloride cement can further decrease product bulk density for foam concrete.It can be used for ornament materials, fire prevention
Plate etc., but the general halogen of the easy moisture absorption of magnesia oxychloride cement, buckling deformation etc. are restricted in the application of exterior-wall heat insulation etc..It is existing
The production of magnesia oxychloride cement foam concrete when stress to improve this feature of magnesium oxychloride cement product water resistance, and have ignored its matter
Light feature, product bulk density is higher, and insulation, sound absorption effect are poor, high production cost.So magnesia oxychloride cement cannot be promoted
The practical application of foam concrete.
Summary of the invention
For existing magnesia oxychloride cement foam concrete production when stress improve magnesium oxychloride cement product water resistance this
Feature, and its light feature is had ignored, product bulk density is higher, and insulation, sound absorption effect are poor, and high production cost is asked
Topic, the purpose of the present invention is to provide a kind of chlorine oxygen magnesium foam fireproof concrete light wall composite material and preparation method thereof,
Gained composite material can be widely applied to wall fire prevention, wall sound insulation, wall body decoration.
In order to achieve the above object, the present invention the following technical schemes are provided:
A kind of chlorine oxygen magnesium foam fireproof concrete light wall composite material, the composite material include bottom and surface layer, institute
The raw material for stating bottom includes: 10~20 parts of magnesium chloride by weight, and 4~6 parts of magnesia, 2~8 parts of water, phosphoric acid 0.1~0.2
Part, 4~8 parts of haydite, 3~8 parts of filler, 0.1~0.2 part of unorganic glass steel fibre, liquid poly carboxylic acid series water reducer 0.1~0.2
Part, 0.1~0.2 part of hydrogen peroxide；
The raw material on the surface layer includes: 10~20 parts of magnesium chloride by weight, and 4~6 parts of magnesia, 2~8 parts of water, phosphorus
0.1~0.2 part of acid, 3~8 parts of filler, 0.1~0.2 part of unorganic glass steel fibre, liquid poly carboxylic acid series water reducer 0.1~0.2
Part, 0~0.2 part of toner.
Preferably, the bottom with a thickness of 25~50mm.
Preferably, the surface layer with a thickness of 25~50mm.
Preferably, the magnesia is using any one in light-magnesite powder, caustic dolomite powder.
Further, the magnesia derives from light-magnesite powder, and wherein content of magnesia is 70~90wt%, and activity is
50~65%；The magnesia derives from caustic dolomite powder, and wherein content of magnesia is 20~30wt%, activity for 14~
15.5%.
Preferably, the magnesium chloride is technical grade, effective content >=46%.
Preferably, water-reducing rate > 10% of the liquid poly carboxylic acid series water reducer.
In the present invention, water is added as solvent；Phosphoric acid is added as water repellent agent.
Preferably, the concentration of the hydrogen peroxide is 30wt%, as foaming agent.
Preferably, the filler includes at least one of industrial residue flyash, silicon ash, slag, desulfurized gypsum.
Preferably, the average length of the unorganic glass steel fibre is 5~15mm.
Preferably, the partial size of the haydite be 1~3mm, 3~5mm, 5~8mm, 8~10mm, 10~13mm, 13~
15mm, 15~18mm, 18~20mm, density are 500~1000kg/m3。
Preferably, one of the toner is iron oxide red, iron orange, iron oxide yellow, zinc-iron are yellow, iron is green.
The present invention also provides the preparation methods of the chlorine oxygen magnesium foam fireproof concrete light wall composite material, including with
Lower step:
(1) magnesium chloride is mixed with water, is stirred evenly, prepare the brine of predetermined concentration, after standing, take supernatant liquor；
(2) the suitable water-wet of haydite is moistened, it is spare after taking-up；
(3) phosphoric acid solution is prepared；
(4) magnesia, filler and unorganic glass steel fibre for weighing the parts by weight, are added suitable water, chlorine oxygen are made
Magnesium cement slurry A '；
(5) phosphoric acid solution, liquid poly carboxylic acid series water reducer are added in brine by setting ratio, are then added after moistening
Haydite and hydrogen peroxide, be added in magnesia oxychloride cement slurry A ', stir evenly after mixing, mixture A is made；
(6) magnesia, filler, unorganic glass steel fibre and the toner for weighing the parts by weight, are added suitable water, are made
Magnesia oxychloride cement slurry B '；
(7) phosphoric acid solution, liquid poly carboxylic acid series water reducer are added in brine by predetermined ratio, are added after mixing
It into magnesia oxychloride cement slurry B ', stirs evenly, mixture B is made；
(8) mixture A is first injected into mold, being placed under negative-pressure vacuum state makes its condensation hardening, forms the chlorine oxygen magnesium
Then mixture B is injected same mold by the bottom of foam fireproof concrete light wall, being placed under negative-pressure vacuum state makes it
Condensation hardening, forms the surface layer of the chlorine oxygen magnesium foam fireproof concrete light wall, and aquation occurs in two layers of intersection and makees
With forming stable entirety, be placed under normal temperature and pressure and stand；
(9) demoulding after the completion of hardening, polishing coat curing sealing agent on surface, chlorine oxygen magnesium bubble are made after natural curing
Foam Fireproof concrete lightweight wall composite material.
In a specific embodiment, in step (1), the concentration of brine is 24~26 Baume degrees.
In a specific embodiment, in step (2), the water that haydite quality 4% is added is moistened.
In a specific embodiment, in step (3), the mass concentration of phosphoric acid solution is 84~86wt%.
In a specific embodiment, in step (8), mixture A is injected into mold, is placed in the shape of negative one atmospheric pressure
1~2h is stood under state, makes its condensation hardening.
In a specific embodiment, in step (8), mixture B is injected into mold, is placed in the shape of negative one atmospheric pressure
3~4h is stood under state, makes its condensation hardening.
In a specific embodiment, in step (9), the curing sealing agent is lithium base curing sealing agent.
Advantage of the invention are as follows:
Oxygen magnesium cement foam haydite fire-proof sound insulation concrete light wall composite material of the invention has light weight, by force
Degree is high, prevents fires, and heat preservation, sound insulation and other effects is a kind of environmentally protective sound absorption and insulation material.
The preparation method of sound absorption ceramic material of the present invention, at low cost, the used time is short, easy to implement.
Detailed description of the invention
Fig. 1 is the process flow chart of preparation method of the present invention.
Specific embodiment
The present invention is further illustrated with reference to the accompanying drawings and examples, and raw material of the present invention passes through business way
Diameter obtains, and preparation method of the present invention is this field customary preparation methods unless otherwise specified, and following embodiment is intended to
Bright of the invention rather than limitation of the invention further.
Embodiment 1
A kind of preparation method of chlorine oxygen magnesium foam fireproof concrete light wall composite material of the present embodiment, including following step
It is rapid:
(1) magnesium chloride is mixed with water, is stirred evenly, prepared concentration as the brine of 24 Baume degrees, after standing, take upper layer clear
Liquid；
It (2) is 1~3mm, 3~5mm, 5~8mm by partial size, the haydite of 8~10mm is wet with water (4% of haydite quality),
It is spare after taking-up；
(3) phosphoric acid solution that mass concentration is 84~86wt% is prepared；
(4) magnesia, filler and unorganic glass steel fibre for weighing the parts by weight, are added suitable water, chlorine oxygen are made
Magnesium cement slurry A '；
(5) phosphoric acid solution, liquid poly carboxylic acid series water reducer are added in brine by setting ratio, are then added after moistening
Haydite and hydrogen peroxide, be added in magnesia oxychloride cement slurry A ', stir evenly after mixing, mixture A is made；
The component of mixture A includes: 10 parts of magnesium chloride, and 4 parts of magnesia, 4 parts of water, 0.1 part of phosphoric acid, 4 parts of haydite, filler 4
Part, 0.1 part of unorganic glass steel fibre, 0.1 part of liquid poly carboxylic acid series water reducer, 0.1 part of hydrogen peroxide；
(6) magnesia, filler, unorganic glass steel fibre and the toner for weighing the parts by weight, are added suitable water, are made
Magnesia oxychloride cement slurry B '；
(7) phosphoric acid solution, liquid poly carboxylic acid series water reducer are added in brine by predetermined ratio, are added after mixing
It into magnesia oxychloride cement slurry B ', stirs evenly, mixture B is made；
The component of mixture B includes: 10 parts of magnesium chloride, and 4 parts of magnesia, 2 parts of water, 0.1 part of phosphoric acid, 3 parts of filler, inorganic glass
0.1 part of glass steel fibre, 0.1 part of liquid poly carboxylic acid series water reducer, 0.1 part of toner；
(8) mixture A is first injected into mold, is placed in the state of negative one atmospheric pressure and stands 2h, harden its condensation, shape
At the bottom of the chlorine oxygen magnesium foam fireproof concrete light wall, bottom with a thickness of 25mm, then mixture B is injected same
One mold is placed in the state of negative one atmospheric pressure and stands 4h, makes its condensation hardening, forms the chlorine oxygen magnesium foam fireproof coagulation
The surface layer of native lightweight wall, surface layer form stable entirety in two layers of intersection generation hydration with a thickness of 25mm,
It is placed under normal temperature and pressure and stands；
(9) demoulding after the completion of hardening, polishing coat lithium base curing sealing agent on surface, chlorine oxygen are made after natural curing
Magnesium foam fireproof concrete light wall composite material.
In the present embodiment, magnesia derives from light-magnesite powder, and wherein content of magnesia is 80~90wt%, activity
It is 55~65%；Magnesium chloride is technical grade, effective content >=46%；Water-reducing rate > 10% of liquid poly carboxylic acid series water reducer；Haydite
Density is 500kg/m3；Filler uses flyash；The average length of unorganic glass steel fibre is 5~15mm.
1 gained chlorine oxygen magnesium foam fireproof concrete light wall composite material of embodiment, density 600kg/m3, 28d is anti-
Compressive Strength >=1MPa, 28d flexural strength >=0.8MPa, freeze proof grade reach F200, and combustibility reaches A1 grades, have certain sound insulation capabilities
High-performance sound-absorbing material.
Embodiment 2
A kind of preparation method of chlorine oxygen magnesium foam fireproof concrete light wall composite material of the present embodiment, including following step
It is rapid:
(1) magnesium chloride is mixed with water, is stirred evenly, prepared concentration as the brine of 26 Baume degrees, after standing, take upper layer clear
Liquid；
It (2) is 5~8mm, 8~10mm, 10~13mm by partial size, the haydite of 13~15mm is with water (the 4% of haydite quality)
It is wet, it is spare after taking-up；
(3) phosphoric acid solution that mass concentration is 84~86wt% is prepared；
(4) magnesia, filler and unorganic glass steel fibre for weighing the parts by weight, are added suitable water, chlorine oxygen are made
Magnesium cement slurry A '；
(5) phosphoric acid solution, liquid poly carboxylic acid series water reducer are added in brine by setting ratio, are then added after moistening
Haydite and hydrogen peroxide, be added in magnesia oxychloride cement slurry A ', stir evenly after mixing, mixture A is made；
The component of mixture A includes: 20 parts of magnesium chloride, and 6 parts of magnesia, 8 parts of water, 0.2 part of phosphoric acid, 8 parts of haydite, filler 8
Part, 0.2 part of unorganic glass steel fibre, 0.2 part of liquid poly carboxylic acid series water reducer, 0.2 part of hydrogen peroxide；
(6) magnesia, filler, unorganic glass steel fibre and the toner for weighing the parts by weight, are added suitable water, are made
Magnesia oxychloride cement slurry B '；
(7) phosphoric acid solution, liquid poly carboxylic acid series water reducer are added in brine by predetermined ratio, are added after mixing
It into magnesia oxychloride cement slurry B ', stirs evenly, mixture B is made；
The component of mixture B includes: 20 parts of magnesium chloride, and 6 parts of magnesia, 8 parts of water, 0.2 part of phosphoric acid, 8 parts of filler, inorganic glass
0.2 part of glass steel fibre, 0.2 part of liquid poly carboxylic acid series water reducer, 0.2 part of toner；
(8) mixture A is first injected into mold, is placed in the state of negative one atmospheric pressure and stands 1h, harden its condensation, shape
At the bottom of the chlorine oxygen magnesium foam fireproof concrete light wall, bottom with a thickness of 40mm, then mixture B is injected same
One mold is placed in the state of negative one atmospheric pressure and stands 3h, makes its condensation hardening, forms the chlorine oxygen magnesium foam fireproof coagulation
The surface layer of native lightweight wall, surface layer with a thickness of for 40mm, hydration occurs in two layers of intersection, is formed stable whole
Body is placed under normal temperature and pressure and stands；
(9) demoulding after the completion of hardening, polishing coat lithium base curing sealing agent on surface, chlorine oxygen are made after natural curing
Magnesium foam fireproof concrete light wall composite material.
In the present embodiment, magnesia derives from light-magnesite powder, and wherein content of magnesia is 70~80wt%, activity
It is 50~60%；Magnesium chloride is technical grade, effective content >=46%；Water-reducing rate > 10% of liquid poly carboxylic acid series water reducer；Haydite
Density is 1000kg/m3；Filler uses flyash；The average length of unorganic glass steel fibre is 5~15mm.
2 gained chlorine oxygen magnesium foam fireproof concrete light wall composite material of embodiment, density 1100kg/m3, 28d is anti-
Compressive Strength >=5MPa, 28d flexural strength >=4MPa, freeze proof grade reach F200, and combustibility reaches A1 grades, have certain sound insulation capabilities high
Performance sound-absorbing material.
Embodiment 3
A kind of preparation method of chlorine oxygen magnesium foam fireproof concrete light wall composite material of the present embodiment, including following step
It is rapid:
(1) magnesium chloride is mixed with water, is stirred evenly, prepared concentration as the brine of 25 Baume degrees, after standing, take upper layer clear
Liquid；
It (2) is 1~3mm, 3~5mm, 5~8mm, 8~10mm, 10~13mm, 13~15mm, 15~18mm, 18 by partial size
The haydite of~20mm is wet with water (4% of haydite quality), spare after taking-up；
(3) phosphoric acid solution that mass concentration is 84~86wt% is prepared；
(4) magnesia, filler and unorganic glass steel fibre for weighing the parts by weight, are added suitable water, chlorine oxygen are made
Magnesium cement slurry A '；
(5) phosphoric acid solution, liquid poly carboxylic acid series water reducer are added in brine by setting ratio, are then added after moistening
Haydite and hydrogen peroxide, be added in magnesia oxychloride cement slurry A ', stir evenly after mixing, mixture A is made；
The component of mixture A includes: 15 parts of magnesium chloride, and 5 parts of magnesia, 6 parts of water, 0.15 part of phosphoric acid, 6 parts of haydite, filler 5
Part, 0.15 part of unorganic glass steel fibre, 0.15 part of liquid poly carboxylic acid series water reducer, 0.15 part of hydrogen peroxide；
(6) magnesia, filler, unorganic glass steel fibre and the toner for weighing the parts by weight, are added suitable water, are made
Magnesia oxychloride cement slurry B '；
(7) phosphoric acid solution, liquid poly carboxylic acid series water reducer are added in brine by predetermined ratio, are added after mixing
It into magnesia oxychloride cement slurry B ', stirs evenly, mixture B is made；
The component of mixture B includes: 15 parts of magnesium chloride, 5 parts of magnesia, 6 parts of water, 0.15 part of phosphoric acid, 6 parts of filler, inorganic
0.15 part of reinforced plastic glass fibre, 0.15 part of liquid poly carboxylic acid series water reducer, 0.1 part of toner；
(8) mixture A is first injected into mold, is placed in the state of negative one atmospheric pressure and stands 2h, harden its condensation, shape
At the bottom of the chlorine oxygen magnesium foam fireproof concrete light wall, bottom with a thickness of 30mm, then mixture B is injected same
One mold is placed in the state of negative one atmospheric pressure and stands 4h, makes its condensation hardening, forms the chlorine oxygen magnesium foam fireproof coagulation
The surface layer of native lightweight wall, surface layer form stable entirety in two layers of intersection generation hydration with a thickness of 30mm,
It is placed under normal temperature and pressure and stands；
(9) demoulding after the completion of hardening, polishing coat lithium base curing sealing agent on surface, chlorine oxygen are made after natural curing
Magnesium foam fireproof concrete light wall composite material.
In the present embodiment, magnesia derives from light-magnesite powder, and wherein content of magnesia is 75~85wt%, activity
It is 55~60%；Magnesium chloride is technical grade, effective content >=46%；Water-reducing rate > 10% of liquid poly carboxylic acid series water reducer；Haydite
Density is 800kg/m3；Filler uses flyash；The average length of unorganic glass steel fibre is 5~15mm.
3 gained chlorine oxygen magnesium foam fireproof concrete light wall composite material of embodiment, density 700kg/m3, 28d is anti-
Compressive Strength >=3MPa, 28d flexural strength >=2.5MPa, freeze proof grade reach F200, and combustibility reaches A1 grades, have certain sound insulation capabilities
High-performance sound-absorbing material.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of chlorine oxygen magnesium foam fireproof concrete light wall composite material, which is characterized in that the composite material includes bottom
And surface layer, the raw material of the bottom include: 10~20 parts of magnesium chloride by weight, and 4~6 parts of magnesia, 2~8 parts of water, phosphoric acid
0.1~0.2 part, 4~8 parts of haydite, 3~8 parts of filler, 0.1~0.2 part of unorganic glass steel fibre, liquid poly carboxylic acid series water reducer
0.1~0.2 part, 0.1~0.2 part of hydrogen peroxide；
The raw material on the surface layer includes: 10~20 parts of magnesium chloride by weight, and 4~6 parts of magnesia, 2~8 parts of water, phosphoric acid 0.1
~0.2 part, 3~8 parts of filler, 0.1~0.2 part of unorganic glass steel fibre, 0.1~0.2 part of liquid poly carboxylic acid series water reducer, toner
0~0.2 part.
2. chlorine oxygen magnesium foam fireproof concrete light wall composite material according to claim 1, which is characterized in that described
Bottom with a thickness of 25~50mm；The surface layer with a thickness of 25~50mm.
3. chlorine oxygen magnesium foam fireproof concrete light wall composite material according to claim 1, which is characterized in that described
Magnesia is using any one in light-magnesite powder, caustic dolomite powder；
The magnesia derives from light-magnesite powder, and wherein content of magnesia is 70~90wt%, and activity is 50~65%；
The magnesia derives from caustic dolomite powder, and wherein content of magnesia is 20~30wt%, and activity is 14~15.5%.
4. chlorine oxygen magnesium foam fireproof concrete light wall composite material according to claim 1, which is characterized in that described
Water-reducing rate > 10% of liquid poly carboxylic acid series water reducer；The concentration of the hydrogen peroxide is 30wt%, as foaming agent.
5. chlorine oxygen magnesium foam fireproof concrete light wall composite material according to claim 1, which is characterized in that described
Filler includes at least one of industrial residue flyash, silicon ash, slag, desulfurized gypsum.
6. chlorine oxygen magnesium foam fireproof concrete light wall composite material according to claim 1, which is characterized in that described
The average length of unorganic glass steel fibre is 5~15mm；
The partial size of the haydite be 1~3mm, 3~5mm, 5~8mm, 8~10mm, 10~13mm, 13~15mm, 15~18mm,
18~20mm, density are 500~1000kg/m3；
One of the toner is iron oxide red, iron orange, iron oxide yellow, zinc-iron are yellow, iron is green.
7. the preparation of chlorine oxygen magnesium foam fireproof concrete light wall composite material described according to claim 1~any one of 6
Method, which comprises the following steps:
(1) magnesium chloride is mixed with water, is stirred evenly, prepare the brine of predetermined concentration, after standing, take supernatant liquor；
(2) the suitable water-wet of haydite is moistened, it is spare after taking-up；
(3) phosphoric acid solution is prepared；
(4) magnesia, filler and unorganic glass steel fibre for weighing the parts by weight, are added suitable water, and chlorine oxygen magnesium water is made
Slurry body A '；
(5) phosphoric acid solution, liquid poly carboxylic acid series water reducer are added in brine by setting ratio, the pottery after moistening then is added
Grain and hydrogen peroxide, are added in magnesia oxychloride cement slurry A ' after mixing, stir evenly, mixture A is made；
(6) magnesia, filler, unorganic glass steel fibre and the toner for weighing the parts by weight, are added suitable water, chlorine oxygen are made
Magnesium cement slurry B '；
(7) phosphoric acid solution, liquid poly carboxylic acid series water reducer are added in brine by predetermined ratio, are added to chlorine after mixing
In oxygen magnesium cement slurry B ', stirs evenly, mixture B is made；
(8) mixture A is first injected into mold, being placed under negative-pressure vacuum state makes its condensation hardening, forms the chlorine oxygen magnesium foam
Then mixture B is injected same mold by the bottom of Fireproof concrete lightweight wall, being placed under negative-pressure vacuum state makes its condensation
Hardening, forms the surface layer of the chlorine oxygen magnesium foam fireproof concrete light wall, and hydration, shape occurs in two layers of intersection
At stable entirety, it is placed under normal temperature and pressure and stands；
(9) demoulding after the completion of hardening, polishing coat curing sealing agent on surface, it is anti-that chlorine oxygen magnesium foam are made after natural curing
Fiery concrete light wall composite material.
8. the preparation method of chlorine oxygen magnesium foam fireproof concrete light wall composite material according to claim 7, feature
It is, in step (1), the concentration of brine is 24~26 Baume degrees；
In step (3), the mass concentration of phosphoric acid solution is 84~86wt%.
9. the preparation method of chlorine oxygen magnesium foam fireproof concrete light wall composite material according to claim 7, feature
It is, in step (8), mixture A is injected into mold, is placed in 1~2h of standing in the state of negative one atmospheric pressure, keeps its condensation hard
Change；
In step (8), mixture B is injected into mold, 3~4h of standing in the state of negative one atmospheric pressure is placed in, keeps its condensation hard
Change.
10. the preparation method of chlorine oxygen magnesium foam fireproof concrete light wall composite material according to claim 7, feature
It is, in step (9), the curing sealing agent is lithium base curing sealing agent.
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| CN110835251A (en) * | 2019-12-10 | 2020-02-25 | 华东交通大学 | Ultrahigh-performance concrete and preparation method thereof |
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